Diagnosis of the Diatom Community upon Biofilm Development on Stainless Steels in Natural Freshwater

Table 3

Taxonomic list of diatoms present on the stainless steel after immersion in the natural freshwater for about six months.

Class	Type	Species	Solitary/colonial	Form	Raphe
Coscinodiscophyceae	Centric	Melosira varians Agardh (1827)	Chain colony	Floating	Araphid
Bacillariophyceae	Pennate	Amphora ovalis Kutzing (1844)	Solitary cell	Adnate	Biraphid
Bacillariophyceae	Pennate	Cocconeis placentula Ehrenberg (1838)	Solitary cell	Adnate	Monoraphid
Bacillariophyceae	Pennate	Cymbella sp. Agardh	Arbuscular colony	Mucilage stalk-upright	Biraphid
Bacillariophyceae	Pennate	Gyrosigma sp. Hassall	Solitary cell	Motile	Biraphid
Bacillariophyceae	Pennate	Nitzschia sigmoidea W. Smith (1853)	Solitary cell	Motile	Biraphid
Bacillariophyceae	Pennate	Placoneis elginensis (Gregory) Cox (1987)	Solitary cell	Motile	Biraphid
Bacillariophyceae	Pennate	Rhoicosphenia abbreviata (Agardh)	Arbuscular colony	Mucilage stalk-upright	Biraphid
Fragilariophyceae	Pennate	Synedra ulna Ehrenberg (1836)	Rosette colony	Mucilage stalk-upright	Araphid